Howard survived a knife wound police say he sustained at the hand of Laura Engelhardt, whom he allegedly had been threatening with the blade.

But Engelhardt, 18, did not make it. Neither did her father, Alan, 57, nor her grandmother, Marlene Gacek, 73. All three died after the attack Friday in their home in the 1000 block of North Bluebonnet Lane.

The 911 recording captures the horror that came in the aftermath of the alleged attack. It begins at 6:44 a.m. with Amanda Engelhardt, 23, who had a child with Howard, tearfully asking for an ambulance as a baby cries in the background.